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cff-version: 1.2.0
message: 'To cite package "babebi" in publications use:'
type: software
license: GPL-3.0-only
title: 'babebi: Bayesian Estimation and Validation for Small-N Designs with Rater
  Bias'
version: 0.1.0
doi: 10.32614/CRAN.package.babebi
abstract: Approximate Bayesian inference and Monte Carlo validation for small-N repeated-measures
  designs with two time points and two raters. The package is intended for applications
  in which sample size is limited and the observed outcome may be affected by rater-specific
  bias. User-supplied data are standardised into a common long-format structure. Pre-post
  effects are analysed using difference scores in a linear model with a rater indicator
  as covariate. Posterior summaries for the regression coefficients are obtained from
  a large-sample normal approximation centred at the least-squares estimate with plug-in
  covariance under a flat improper prior. Evidence for a non-zero pre-post effect,
  adjusted for rater differences, is summarised using a BIC-based approximation to
  the Bayes factor for comparison between models with and without the pre-post effect.
  Monte Carlo validation uses design quantities estimated from the observed data,
  including sample size, mean pre-post change, and second-rater additive discrepancy,
  and summarises inferential performance in terms of bias, root mean squared error,
  credible interval coverage, posterior tail probabilities, and mean Bayes factor
  values. For background on the BIC approximation and Bayes factors, see Schwarz (1978)
  <https://doi.org/10.1214/aos/1176344136> and Kass and Raftery (1995) <https://doi.org/10.1080/01621459.1995.10476572>.
authors:
- family-names: Gianeselli
  given-names: Irene
  email: irene.gianeselli@unibz.it
  orcid: https://orcid.org/0000-0002-8689-3035
  affiliation: Free University of Bozen-Bolzano
- family-names: Bosco
  given-names: Andrea
  orcid: https://orcid.org/0000-0002-9458-3993
  affiliation: University of Bari Aldo Moro
- family-names: Basso
  given-names: Demis
  orcid: https://orcid.org/0000-0002-4595-3513
  affiliation: Free University of Bozen-Bolzano
repository: https://cran.r-universe.dev
commit: aa79b08b62dd3f156631dbae2521f5000677705e
date-released: '2026-04-23'
contact:
- family-names: Gianeselli
  given-names: Irene
  email: irene.gianeselli@unibz.it
  orcid: https://orcid.org/0000-0002-8689-3035
  affiliation: Free University of Bozen-Bolzano